:

:

./
(4812) 31-08-84,
(4812) 31-74-79,
(4812) 31-74-99.


e = a227tr2LT(rcT2-r2),

at a2 - .

:

1 2kLt 1 r2 2nLx 1 2nLz

------- = ×Cl-'cTl); 7-'_ = _7('oil" ' 2); ------- = r-('cr.2-'2)■
a1I■1 Q X ry Q a2r2 Q

,


301


. , :

1 1 2 1 2nLx

+ -!- + = {h-h),

,, ^ , 22 Q

( ' 2 1\

Q = 2/1 , , + - In + I.

V X , .22/

/1 1 2 1\

2/(------ + -1-+----------- ) = £,, (11.74)

,!-, X , 22/

Kt, .

Q = K,Lx{tl-t2). (11.75)

{ :


:

""

/ ()

!